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Optical Properties of Nanostructures on a Surface of CdZnTe Crystal By Pulsed Powerfull Laser Radiation

By Artūrs Medvids, Aleksandrs Mičko, Pāvels Onufrijevs, Artūrs Plūdons, Natalija Litovchenko and Oksana Strilchuk

Abstract

Self-organizing structures of nanometer size are observed on the surface of CdZnTe crystal irradiated by strongly absorbed Nd:YAG laser radiation (LR) at intensities within 4 - 12 MW/cm2. The effect of exciton quantum confinement manifested by a shift to higher energies of the A0,X exciton band of the photoluminescent spectrum is present in structures of 10 – 15 nm in diameter at the top of nano-hills. A graded band gap structure with optical window is formed at the top of nano-hills

Topics: Self-organizing structure, Nd:YAG laser, exciton quantum confinement effect, CdZnTe crystal
Publisher: PFI Vilnius
OAI identifier: oai:ortus.rtu.lv:3754
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